Title :
Design & development of a compact, low power, high resolution UWB sub-surface scanner for space applications
Author :
Rai, Abhay K. ; Quine, Brendan ; Magierowski, Sebastian
Author_Institution :
Dept. of Earth & Space Sci. & Eng., York Univ., Toronto, ON, Canada
Abstract :
We describe a low power, high resolution ultra-wideband radar using impulse type signaling for remote and extraterrestrial geophysical investigation of surfaces via range and reflectivity characteristics. The instrument combines a Pico-pulse generator based transmitter, receiver and antenna in one compact package, operates in L/S band thereby achieving an operational frequency range of 1-5GHz. The transmitter consists of a 250mA impulse drive unit and 1-2V 200-500ps Pico-pulse generator. The system utilizes a microstrip-fed Vivaldi antenna with up to 7.6dB gain and S11 <; -10dB over the entire operational frequency band. The design minimizes component count, dimensional footprint, and is easy to fabricate making it especially suitable to the limited payloads of space applications.
Keywords :
antenna feeds; microstrip antennas; pulse generators; radar resolution; ultra wideband antennas; current 250 mA; frequency 1 GHz to 5 GHz; high resolution UWB subsurface scanner; high resolution ultrawideband radar; impulse drive unit; impulse type signaling; microstrip-fed Vivaldi antenna; pico-pulse generator based transmitter; Antenna radiation patterns; Clocks; Generators; Microstrip antennas; Slot antennas; Transmitters; Vivaldi antennas; Impulse Drive Unit; Pico-pulse generator; Sub-nano second; Tapered Microstrip Delay Lines; UWB; UWB Vivaldi antenna; sub-surface scanning;
Conference_Titel :
Microwave and RF Conference (IMaRC), 2014 IEEE International
Conference_Location :
Bangalore
DOI :
10.1109/IMaRC.2014.7039044
